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BioReagent, Biological Stain, for Fluorescence analysis, for Microscopy, ≥98%(HPLC) Biological Stain,BioReagent,per l'analisi a fluorescenza,per la microscopia for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Protected from light,Store at -20°C,Desiccated,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
AF647 NHS Ester is a far-red fluorescent dye with good photostability. Its fluorescence signal decays slowly during long-duration experiments and maintains stable fluorescence for extended periods, which is beneficial for long-term tracking and observation of biomolecules. It has a high fluorescence quantum yield. The activated ester group of this dye can react with amino groups (primarily primary amines) on target biomolecules to form stable amide bonds, thereby labeling biomacromolecules with AF647 fluorescent moieties.
Spectral properties:
Excitation/absorption maximum: 651 nm
Emission maximum: 671 nm
Extinction coefficient (ε): 265000
Fluorescence quantum yield (Φ): 0.33
Precautions for Fluorescent Products:
1. Activated esters are prone to hydrolysis. After taking out from the refrigerator, allow the vial to warm to room temperature in a dry environment before opening. Since the reagent quantity is small, gently tap the vial several times before opening to ensure all powder falls to the bottom.
2. It is recommended to prepare the stock solution fresh at first use. Use the dissolved reagent as soon as possible to guarantee experimental performance.
3. Fresh anhydrous DMSO is required for dissolution. Water contamination will cause hydrolysis of the activated ester and compromise experimental results.
4. The prepared stock solution is susceptible to hydrolysis upon exposure to water. If not fully consumed in one experiment, aliquot the solution (e.g., 5–8 μL per tube), seal with parafilm, wrap with aluminum foil, place in a well-sealed plastic bag containing desiccant, and store hermetically at ≤ -20°C protected from light.
5. It is recommended to optimize cell density, dye/probe concentration and incubation time in preliminary tests before formal experiments to determine optimal experimental conditions.
| CAS alternativo | 407627-60-5 (free base) |
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| Peso molecolare | 1259.66 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
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View spec sheet →| Solubilità | Soluble in DMSO |
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View BioReagent grade guide → View Biological Stain grade guide → View for Fluorescence analysis grade guide → View for Microscopy grade guide →